Home / 99,845.60-137,817.44-61,616.84

Finding the Fourth Proportional to 99,845.60, 137,817.44 and 61,616.84

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Solution

The fourth proportional to 99,845.60, 137,817.44 and 61,616.84 is: 85,050.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,845.60 : 137,817.44 = 61,616.84 : x
  2. Step 2: Convert to fraction form
    99,845.60/137,817.44 = 61,616.84/x
  3. Step 3: Cross multiply
    99,845.60x = 137,817.44 × 61,616.84
  4. Step 4: Simplify right side
    99,845.60x = 8,491,875,149.69
  5. Step 5: Solve for x
    x = 8,491,875,149.69/99,845.60
  6. Step 6: Final answer
    x = 85,050.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.